14-03-2016
Mathematics

contestada

x+y=19 , -x+y=1 (subtraction)

Respuesta :

Panoyin Panoyin

14-03-2016

x + y = 19
-x + y = 1
2y = 20
2 2
y = 10
x + y = 19
x + 10 = 19
- 10 - 10
x = 9
(x, y) = (9, 10)

Answer Link

apologiabiology apologiabiology

14-03-2016

ok so elimination
add them togehter
x+y=19
-x+y=1 +
0x+2y=20

2y=20
divide both sides by 2

y=10
subsitute
x+y=19
x+10=19
subtrac 10
x=9

x=9
y=10
(x,y)
(9,10)

Answer Link

Otras preguntas

f(x)=(1/4)^x step 1 calculate the initial value of the f(0)=f(x)=(1/4)^x plot the initial value of the function at (0,1)

Find the area of the shape with the radius of 10

Need answers fastFind the area of a trapezoid, base 1 measures 77 ft, base 2 measures 31 ft, height measures 25 ft

you need to buy 7 notebooks that cost $0.74 each. How much will it cost?

A 46.0-kg box is being pushed a distance of 8.80 m across the floor by a force P whose magnitude is 171 N. The force P is parallel to the displacement of the bo

Define electrical activation.

Read this example: According to Carina McGinnis, a spokesperson for the U.S. Auto Safety Commission, Accidents involving adults 25-54 who were texting and drivi

3.6 x 0.025 is my question to be answered

One huge shift that makes the Haber-Bosch process so useful is that they cool the reaction during the process so that ammonia turns into a liquid and drains out

What kinds of problems do you foresee for the western half of the empire?